1240434101143 has 16 divisors (see below), whose sum is σ = 1313736938496. Its totient is φ = 1168774548480.

The previous prime is 1240434101087. The next prime is 1240434101147. The reversal of 1240434101143 is 3411014340421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240434101143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240434101147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553446 + ... + 2212252.

It is an arithmetic number, because the mean of its divisors is an integer number (82108558656).

Almost surely, 2^{1240434101143} is an apocalyptic number.

1240434101143 is a deficient number, since it is larger than the sum of its proper divisors (73302837353).

1240434101143 is a wasteful number, since it uses less digits than its factorization.

1240434101143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660054.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1240434101143 its reverse (3411014340421), we get a palindrome (4651448441564).

The spelling of 1240434101143 in words is "one trillion, two hundred forty billion, four hundred thirty-four million, one hundred one thousand, one hundred forty-three".